Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate
2006-08-08
2006-08-08
Dorvil, Richemond (Department: 2654)
Data processing: speech signal processing, linguistics, language
Speech signal processing
For storage or transmission
Reexamination Certificate
active
07089179
ABSTRACT:
A gain unit scales a code vector Ci output from a configuration variable code book by a gain g after the positions of non-zero samples are controlled according to an index and transmission parameter p. A linear prediction synthesis filter input the multiplication result, and outputs a regenerated signal gACi. A subtracter outputs an error signal E by subtracting the regenerated signal gACi from an input signal X. A error power evaluation unit computes an error power according to an error signal E. The above described processes are performed on all code vectors Ci and gains g. The index i of the code vector Ci and the gain g with which the error power is the smallest are computed and transmitted to the decoder.
REFERENCES:
patent: 4944013 (1990-07-01), Gouvianakis et al.
patent: 5701392 (1997-12-01), Adoul et al.
patent: 5826226 (1998-10-01), Ozawa
patent: 5963896 (1999-10-01), Ozawa
patent: 5-19795 (1993-01-01), None
patent: 7-56599 (1995-03-01), None
patent: 7-92999 (1995-04-01), None
A. Kataoka et al: “A 6.4-KBIT/S Variable-Bit-Rate Extension to the G.729 (CS-ACELP) Speech Coder” Ieice Transactions on Informaiton and Systems, JP, Institute of Electronics Information and Comm., Eng. Tokyo, vol. E-80-D, No. 2, Dec. 1, 1997, pp. 1183-1189.
Ojala, P: “Toll Quality Variable-Rate Speech Codec”, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), US, Los Alamitos, IEEE Comp. Soc. Press, Apr. 21, 1997 pp. 747-750.
M. Bouraoui et al: “HCELP: Low Bit Rate Speech Coder for Voice Storage Applications” IEEE International Conference on Acoustics, Speech, and Signal (Processing ICASSP), US, Los Alamitos, IEEE Comp. Soc. Press, Apr. 21, 1997, pagers 739-742.
M. Akamine et al: Adaptive Density Pulse Excitation for Low Bit Rate Speech Coding IEICE Transactions on Fundamentals of Electronic, Communications and Computer Sciences, JP, Institute of Electronics Information and Comm. Eng. Tokyo, vol. E78-A, No. 2, Feb. 1, 1995 pp. 199-207.
Ota Yasuji
Suzuki Masanao
Tsuchinaga Yoshiteru
Azad Abul K.
Dorvil Richemond
Fujitsu Limited
Katten Muchin Rosnman LLP
LandOfFree
Voice coding method, voice coding apparatus, and voice... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voice coding method, voice coding apparatus, and voice..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voice coding method, voice coding apparatus, and voice... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3695714